Question 2 (viii) - Adding and Subtracting Like terms - Worksheet - Chapter 10 Class 7 Algebraic Expressions

Last updated at August 14, 2026 by

Ex 12.2, 2 - Chapter 12 Class 7 Algebraic Expressions - Part 8

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Transcript

Question 2 Add: (viii) 3p2q2 – 4pq + 5, – 10 p2q2, 15 + 9pq + 7p2q2 (3p2q2 – 4pq + 5) + (– 10 p2q2) + (15 + 9pq + 7p2q2) = 3p2q2 – 4pq + 5 – 10 p2q2 + 15 + 9pq + 7p2q2 = 3p2q2 – 10 p2q2 + 7p2q2 – 4pq + 9pq + 5 + 15 = p2q2 (3 – 10 + 7) + pq (–4 + 9) + (5 + 15) = pq2 (–7 + 7) + pq (5) + (20) = pq2 (0) + 5pq + 20 = 5pq + 20

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